It is often difficult to compare two or more devices, either during development or purchase, especially when they are operating in different parts of the world during testing. Based on the examination of coffee capsules of consistent quality, which are easily available worldwide, we have developed a methodology with which instrumental aroma testing technologies operating on different principles can be quickly compared, regardless of whether they operate in the world. Our article published in the journal Chemosensors presents the results of three significantly different devices. The surprisingly similar results show a good correlation with the results of human sensory properties. The method is suitable for comparing newly developed technologies with previous, already proven technologies; assessing their reliability, and determining which technologies provide results that are more closely related to human sensory properties; and which technologies reinforce or complement each other depending on whether they provide identical or different results when examining the same set of samples.
